It’s not so much that I want a heat generator as that’s what I expect to be fastest way to commercialize an over-unity FF. Your unit cost favors the low end, whereas I’m expecting it to be closer to 1M engineered and installed.

What neither of us has in the budget is NRC type approval/ certification, licensing fees, inspection fees, and other assorted politics which will put upward pressure on those 3rd party fees. How much extra time and regulatory expense is anybody’s guess at this point, but I doubt it’ll be a small fraction of the system costs unless we have overwhelming public awareness and support.